# Flashcards World

> Free spaced-repetition flashcard app for web, iOS, and Android. 1M+ students,
> 7M+ downloads, 10M+ flashcards created. Open knowledge wiki (433+ articles)
> on study technique, learning science, and subject-specific flashcard guides.

Flashcards World is a free, no-sign-up-required platform that helps learners
memorise vocabulary, formulas, dates, and any paired information faster.
The app supports spaced repetition (FSRS algorithm), four study modes
(classic flip, multiple choice, writing, drawing, audio), offline study,
image and audio cards, AI-assisted card generation, and import from Anki,
Quizlet, CSV, and Excel.

The site is available in 25 languages (English, Spanish, French, German,
Italian, Portuguese, Portuguese (Brazil), Russian, Ukrainian, Turkish,
Korean, Chinese, Vietnamese, Malay, Indonesian, Catalan, Norwegian,
Icelandic, Hindi, Filipino, Czech, Dutch, Japanese, Swedish, Polish).

## Product pages

- [Homepage](https://flashcards.world/): Free spaced-repetition flashcards — product overview, features, social proof
- [Create flashcards](https://flashcards.world/create/): Card editor with image, audio, and AI-assisted card generation
- [Browse public sets](https://flashcards.world/flashcards/): 100,000+ community-shared flashcard sets
- [Brain Gym](https://flashcards.world/braingym/): 13 memory and focus mini-games designed for study breaks
- [About](https://flashcards.world/about/): Company background, team, and mission
- [Contact](https://flashcards.world/contact/): Support email and response SLAs

## Subject hubs

- [Languages](https://flashcards.world/subjects/languages/): Spanish, French, German, Italian, Japanese, Mandarin, Korean, and more
- [Sciences](https://flashcards.world/subjects/sciences/): Biology, chemistry, physics, anatomy, neuroscience
- [Academic](https://flashcards.world/subjects/academic/): History, geography, mathematics, literature, philosophy
- [Professional](https://flashcards.world/subjects/professional/): Medical (MCAT, USMLE), legal (bar exam), finance (CFA), coding interviews

## Learning-science wiki (canonical references)

- [Spaced repetition science](https://flashcards.world/wiki/spaced-repetition-science): Forgetting curve, expanding intervals, FSRS algorithm explainer
- [Active recall vs passive review](https://flashcards.world/wiki/active-recall-vs-passive-review): Evidence that retrieval-based study outperforms re-reading
- [How to study with flashcards](https://flashcards.world/wiki/how-to-study-with-flashcards): Complete methodology guide — card creation, scheduling, study modes
- [How to memorise anything](https://flashcards.world/wiki/how-to-memorize-anything): Memory techniques: chunking, mnemonics, visualisation
- [Best study techniques for exams](https://flashcards.world/wiki/best-study-techniques-for-exams): Evidence-based exam-prep methods
- [Flashcards for language learning](https://flashcards.world/wiki/learn-a-new-language-with-flashcards): Vocabulary acquisition strategy with flashcards
- [Flashcards for medical students](https://flashcards.world/wiki/flashcards-for-medical-students): Anatomy, pharmacology, USMLE prep approach
- [Flashcards for biology students](https://flashcards.world/wiki/flashcards-for-biology-students): Cell biology, genetics, anatomy
- [Flashcards for law students](https://flashcards.world/wiki/flashcards-for-law-students): Case briefs, legal terminology, bar prep
- [Flashcards for chemistry students](https://flashcards.world/wiki/flashcards-for-chemistry-students): Reactions, formulas, periodic table
- [Flashcards for economics](https://flashcards.world/wiki/flashcards-for-economics): Micro/macro concepts, models, exam prep
- [Flashcards for coding interviews](https://flashcards.world/wiki/flashcards-for-coding-interviews): Data structures, algorithms, system design

## Native apps

- [iOS app](https://apps.apple.com/app/flashcards-world/id6447302554): 4.8★ App Store rating
- [Android app](https://play.google.com/store/apps/details?id=flashcards.words.words): Google Play

## Brand facts

- Operated by Flashcards World SL (Spain)
- Free with optional Pro upgrade for AI features and HD voice
- No sign-up required to study or create cards
- Privacy-friendly: works offline, local-first storage
- Contact: hello@flashcards.world

## Optional

- [Full wiki index (433 articles)](https://flashcards.world/wiki/)
- [Sitemap (XML)](https://flashcards.world/sitemap.xml)
- [Privacy policy](https://flashcards.world/privacy/)
- [Terms of service](https://flashcards.world/terms/)
- [Refund policy](https://flashcards.world/refund-policy/)